Turbine-muffler.



PATENTE!) MAR. 5, 1907. C. R. GRAARY.

` TURBINB MUM-LER. APPLICATION FILED MAR. 29. 1906.

2 SHEETS-SHEET 1.

CEClll RAY CRARY, CEST. CLAIR, MICHIGAN.

TURBINE- its s415362.

Speccation of Letters Patent.

MUFFLER.

Patented March o, 1907;

Application filed nach 29, i906. serial No. 308,767,

To all whom t may concern:

Be it known that i, CECIL RAY CRARY, a citizen of the United States, residing at tit. Clainin the county of St. Clair and mate of Michigan, have invented certain new and usei'ulv improvements in vTurbine-iuui'tlers, of'which the following is a speciication.

This invention relates to new and useful improvements in -niutiers for gas and other elastic-huid engines. The construction contemplated pertains particularly' to that type of muiiier Known as the turbine-niuiiler.

Y The primary object or' the present invention is to provide a niu'liler designed to reduce the back pressure or1 the residual gases in the engine-cylinder and to eliect a thoroughl clearing oi' the cylinder alter each action of the exhaust-valve, and this consideration is attained by creating suction in the muliei, -the same being geared .to the engine, so as to act as a high-head centrifugal pump.

A further object of the invention is to so thus dissipate and scatter the spent products of combustion from the engine-cylinder as to eii'ectualy reduce to a minimum the noise ot the escape of said products.

The detail construction will appear in the course of the 'following description, in which reference is had to the accompanying drawings, forming a part of this .specihcation, like numerals designating like parts throughout I the several views, wlierein- Figure 1 is a front elevation of a niufiier constructed in accordance with the present invention and showing the same as geared to the shaft of an engine. Fig. 2 is a section upon the line 2 2 of nig. 1 looliing in the ,direction'o'f the arrow and showing the rnulier in side elevation. Fig. 3 is a longitudinal section. on the line 3 of Fig. 2 looking in the direction of the arrow, and Fig. fl is a transverse section on the line 4 -fl of E ig. 3 looking in the direction of the arrow.

in the practical embodiment of my invention i employ a suitable support comprising a base 1, which is secured by bolts to a suitable foundation and a body portion 2, of a seniicircular contour, for the reception of the niuiller. The body portion 2 is provided with transverscl end walls 3, which serve as bearings for the shalt oiz said nluli'ler. rlie base 1 is provided at one end ivitll an enlarged recessed boss Ll, in which ls journaled :in any approved iiiannci' the end of asliait which may be the eng ile-shalt, or wiuch'i'nay be geared to the engine-shaft and driven tlieiei'roni.

"lne mufliershaft 6 is journaled in the Walls 3 ot' the support and is driven trom the shaft 5 by .gearlng comprising a crown- Wheel 7, mounted upon said shaft 5, which inesheswitli a bevel-pinion 8, carried upon the projecting end oi' the snat't o'.

Fl ne inuther comprises a stationary casing and a series of pistons or bucliets carried by the shalt 6, which revolve Within said casing. 'l hecasing comprises a plurality or' sections, the outer sections ol'- said casing being designated by the numeral 9 and constituting the end Walls thereof and the intermediate sections being designated by the numeral 10.

lhe sections 9 are formed with a central apertured hub 11, throughy which the shalt 6 passes. Said sections are provided with concave inner surfaces, Which are formed with an annular groove 12, that serves as a runway tor the pistons or buckets ot the niuiller to be hereinafter described. 'l'lie sections 10 are lorrned with a reduced central portion 13, which is apertured for the passage of shaft 6 therethrough. The outer portions of the sections 1l) are formed on each side with annular grooves 14, which coact with the 'adjacent grooves 14 and 12 (of the sections 1l) and 9) in forming the runway for the pistons or buckets. 'lhe inner Wall of each groove 141 and 12 is of less depth than the outer walls of said grooves, as is shown at 1d in llig. 3, and within'said grooves a concentric space 15 is provided for the reception of the carryingdisks ot the inutlier pistons or buckets.

The sections 9 are severally provided With outstanding peripheral langes 16, and the sections 1l) are provided adjacent to the grooves 141 with similar outstanding flanges 16, which" are arranged in spaced parallel pairs in each section 10. l'he llanges 16 conr'ront one another throughout the structure of the casing and are united in opposed pairs by bolts 16a. lt will thus be seen that the adjacent sections cooperate to forni independent turbine-cylinders, which are interconnected throughout the series.

One of the sections 9 and the opposing section 10 are provided with tangentially-arj ranged grooves 17, which coact in confront- 1 ing relation to forni an inlet-port and are connected With a conductor 1S, leading 'from j the engine-exhaust, and the other sectloiis 9 land the sect-ion, 1l) adjacent thereto are IDO formed with similarly constructed and arranged grooves, which are connected to an outlet-conductor 19.

The sections 1() are provided severally with openings 20, extending therethrough between the grooves 14. The openings 20 are arranged on opposite sides in each adjacent section, and where several sections are em# p loyed said openings are in staggered relation throughout the series. seen that the openings 2O afford communication between the several sections 10, the communication between said sections being interrupted by the muffler pistons or buckets, which severally act as valves with relation to the openings 20.

The spaces 15 confront one another in opposing pairs in the adjacent sections 10 and 9 and in this relation have located therein disks 21 of constrieted diameter. vThe disks-21 are severally provided with apertured hubs 22, occupying the width of the space between said sections. The hubs 22 are rigidly securedin any approved manner, as by keys, to the shaft 6. The disks 21 carry muffler'y pistons or buckets 23, which are provided withbifurcated extensions 24, occupying the Aspace between the reduced walls 14a of the grooves 12 and 14, by which the said buckets are secured to the constricted portions of the disks21 through the agency of transverse securing-bolts 25.

The pistons or buckets 23 possess a similar arrangement throughout the casing and travel in the same direction with one another and with the shaft 6. Said buckets are of a sufficient diameter to fit snugly Within vthe runway formed by the2 grooves 12 and 14 in their confronting relation.` For the purpose of effecting a sealed joint between said buckets and said grooves the buckets may be provided adjacent their greatest diameter with elastic packing] .I have notdeemed it necessary to illustrate this last-named feature, as it is clearly within .the scope of the inven# tion, together with other details of the arrangementsand construction.

1n operation the shaft 6 isdriven at a high rate of speed from the sliaft 5 and the spent products of combustion "are drawn into the casing by the suction ofthe rapidly-revolving pistons or buckets 23 through the conductor 18.

The waste gases tnus introduced into the casing travel approximately half of the circumference of the grooves, at which time they egress independently from the several buckets through the opening 20 to the adjacent section 10, in which they travel in the same direction approximately half the circumference of the grooves and are then drawn through the opening 20 into the nextadjacent section, and so on throughout the entire series of sections until they egress through the port 1).

It will thus be Having fully described my invention,` lclaim 1. ln a muffler a stationary casing com-v prising a plurality of connected sections, a shaft extending through said sections, pistons carried by said shaft and revolving between the opposing sections, the outermost sections being provided respectively with inlet and outlet ports, and the intermediate `sections being provided with openings therethrough arranged in non-alined relation throu hout the series.

2. n a mufller "a stationary casing cornprising a plurality of sections, arranged in transverse alinement and in confronting relation, a shaft extending through said sections,

said sections being severall r formed witlran-- nular grooves, the outer sections being provided respectively, with inlet and outlet ports and the intermediate sections being formed with openings therethrough, arranged in staggeredv relation throughout the series and pistons carried by said shaft and occupying and traveling in the space between said grooves.

3. In a muffler a stationary casing comprising a plurality of sections, arranged in horizontal alinement and severally in confronting relation with the adjacent sections, a revolving shaft extending transversely through said sections, means for operating said shaft from the shaft of an engine, one of the outer sections, being formed with an inlet-port, leading from the exhaust mechanism of an engine and the other of the outer sections being formed with an outlet-port, the intermediate sections being severally provided with openings arranged in stag geredrelation throughout the series and affording communication therebetween, and pistons carried by said shaft and occupying the spaces between the several sections in their confronting relation.

4. In a muffler a base, a stationary casing supported thereon, and comprising a plurality of transversely non-alined sections, arranged severally in confronting relation with the adjacent section, a shaft extending transversely 'through said sections and journaled in said base, the end sections of said casing being provided respectiyely with inlet and outlet ports and the intermediate sections of said casings being formed with openings therethrough, arranged in staggered relation and affording communication therebetween and pistons occupying t-he space between said sections.

5. In a turbine-muffler a casing comprising a plurality of independent sections arranged in transverse alinement and severally lin confronting relation in adjacent pairs, said sections being united to one another and cooperating in confronting pairs to form independent \urbi11e-cylinders, a shaft extending transversely through said sections, the. end

lOO

turbine-cylinders constituted by the adjaand revolubiy traveling in the space between 'ro cent end pair of sections being respectively the confronting sections. A provided with inlet and outlet ports, the in- In testimony whereof I afx my signature terriecfliate sdectiolps of the series Cpeinghsevin presence of two Witnesses.

5 era y orme Wit openings exten ing t erethrough and affording communication there- CECIL RAY CRARY between, said openings being arranged in Witnesses: staggered relation throughout the series, and HUGO EWART, pistons carried by said shaft and occupying JAMES T. CRARY. 

